Like most of the rest of the continental US, it is hot here. I am in a location where I can't easily charge the car, so I have gone several days without charging. I noticed that 5 - 8 miles disappears off range every day even without driving the car. I happened to come out to the car (without the key fob),which is parked outside, and heard a fan running in the Model S. Since it is about 98 degrees in the shade, I'm thinking that some feature such as a battery cooling system is running to protect the battery against the high surrounding temperatures. I guess this is part of what is taking away some range (in addition to other vampire loads). Have others noticed this? I would think you would see this in places like AZ, if that it what it is.